Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"khan lap so snippets" » "phan lap so snippets", "khan ap so snippets", "khan cap so snippets", "khan dap so snippets", "khan lam so snippets", "khan lap mo snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("khan lap so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("khan lap so snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( khan lap so snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("khan lap so snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.